The Console.time and Console.timeend methods allow developers to use in arbitrary code, and the result shown is the intermediate duration, in milliseconds. Because JavaScript performance is more and more important, it is useful for programmers to understand basic benchmarking techniques. One of the simplest benchmark tools is the console.time and console.timeend combination.
Console.time starts a timer. Instead, Console.timeend stops the timer and wr
Memaslap is a load generation and benchmark tool for memcached servers. It generates configurable workload such as threads, Concurrencies,connections, run time, overwrite, Miss rate, key size, V Alue size, get/setproportion, expected throughput, and so on. Furthermore, it also tests dataverification, expire-time verification, UDP, binary protocol, Facebook test,replication tes T, Multi-get and reconnection, etc.
It can be considered that Memaslap is a
1, the U disk is made into U-depth u disk Startup disk, connected to the computer to restart waiting for the start screen press the U-disk startup shortcut key, select "02" Run U depth win8pe installed maintenance version (new machine), press ENTER to confirm, as shown in the figure:
2, enter the PE system desktop, click on the bottom right corner "Windows icon-hardware detection--hdtune hard disk detection", as shown in the figure:
3, open the Hdtune hard disk detection tool, you can sele
.tar.gz
Cd redis-2.6.9
Make
Cd src make install
2. Move the configuration file location (for ease of Management)
Cd/usr/local/
Mkdir-p/usr/local/redis/bin
Mkdir-p/usr/local/redis/etc
Mv/lamp/redis-2.6.9/redis. conf/usr/local/redis
This article mainly describes how to install Redis under Linux and expand the Redis in PHP, interested in the friend's reference, I hope to help you.
Part I: Installing RedisWant to install Redis to this directory
/usr/local/redis
You want to download the installation package to this directory
/usr/local/src
Then the
Redis basic 4-redis service, redis basic 4-redis
Redis configuration file
The main problem was that redis. pid was not found.
Below is my configuration file
# By default Redis does not
will be used. Therefore, we recommend that you use jemalloc to optimize tcmalloc.
To install tcmalloc, you can:# Make USE_TCMALLOC = yes
Reference: Use TCMalloc to replace the malloc memory allocation of Nginx and Redis default glibc Libraries
Modify the CFLAGS parameter for debugging.
# Make CFLAGS = "-g-O0"
After the make command is executed, five executable files are generated in the src directory, they are re
/local/redis/etc/redis-conf
11. Next let's take a look at the files in the/usr/local/redis/bin directory.
Redis-benchmark: redis Performance Testing ToolRedis-check-aof: A Tool for checking aof logsRedis-check-dump: a tool used
start a process. The default value is 2 and there is also 127.0.0.1.
Bind 0.0.0.0
After the installation is complete, the redis directory structure is as follows:
[Root @ cache-ns-4 ~] # Tree/usr/local/redis/Usr/local/redis── Bin # store various execution files under bin│ ── Redis-
implementation. The second is to determine whether Jemalloc makes, and finally if not used, the standard LIBC memory management functions. So use Tcmalloc optimization carefully, these two splitter fragment rate difference is not small, it is recommended to use the Jemalloc.
If you want to install Tcmalloc you can do this:
# Make Use_tcmalloc=yes
Reference: malloc memory allocation with Tcmalloc replacement nginx and Redis default GLIBC libraries
To
from within"fail "Server started even if RDB was unreadable!"" ("uplevel" body line 2) invoked from within"uplevel 1 $elsescript" (procedure "wait_for_condition" line 7) invoked from within"wait_for_condition 50 100 { [string match {*Fatal error loading*} [exec tail -n1
After the make command is executed, four executable files are generated in the current directory, including redis-server, re
directory, which is required to configure and start redis.
In addition, the bin directory under the installation directory file contains the following files.
Redis-benchmark // Performance Testing Tool-n xxx indicates that xxx commands are issued for testingRedis-check-aof // a tool for checking aof logsRedis-check-dump // tool for checking rbd logsRedis-cli //
Redis has created a new way of storing data. When using redis, we don't have to focus on how to put elephants in the refrigerator in the face of monotonous databases, instead, redis uses flexible data structures and data operations to build different refrigerators for different elephants. Common redis Data Types
option to ensure data integrity.No-appendfsync-on-rewrite NoWe allow Redis to automatically rewrite aof. When aof grows to a certain size, redis implicitly calls bgrewriteaof to rewrite the log file to reduce the file volume.Redis works this way: Redis records the size of the aof when it was last rewritten. If Redis h
] # cd redis-2.8.19The [root @ redis redis-2.8.19] # make
After the make command is executed, six executable files are generated in the src directory, they are redis-server, redis-cli, redis-b
configuration file.
Mkdir-p/usr/local/redis/etc
mkdir-p/usr/local/redis/etc
-P is recursive creation.
Next, copy the redis.conf under the redis-2.8.19 folder to/usr/local/redis/etc/
and move the 7 command files (green) under the SRC directory to/usr/local/redis/bin/
[Lsgoz
In-depth introduction to Redis-redis sentinel cluster, simple introduction to redis-redis1. Sentinel
Sentinel is a Redis high availability solution: a Sentinel system consisting of one or more Sentinel instances can monitor any number of Master servers, and all slave servers under the master server. When the monitored
In-depth introduction to the Redis-redis underlying data structure (I), in-depth introduction to redis-redis1. Overview
I believe everyone who has used Redis knows that Redis is a key-value-based distributed storage system, similar to Memcached, but it is better than Memcach
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